No Stupid Questions

You don't. Love is expressed by things people do, not what they say.

based on all the questions you've posted lately you desperately need to talk to a psychologist. We don't know your situation, and you need an objective 3rd party with training, experience and a legal requirement of privacy to figure your issues out. Someone you can tell everything to, who won't share it, and can pick through your perceived and actual experiences to guide towards healing.

I think most parents genuinely care about their kids and love them to the fullest extent they know how. I think it just gets lost a lot of the times because parents are also just people with decades of their own trauma who probably had kids before they really worked on themselves enough. Sometimes they'll show you "tough love" (read: unkindness) because from reflecting on how they were raised, they think it will be good for you. If you try to understand what their belief system is, you'll probably start to see how they believe they are helping you.

Ex) My mom never wanted kids, and told me so herself. She didn't spend much bonding time with us. But she worked a lot in laborious jobs and always cooked us healthy meals even though she didn't like cooking either. She doesn't enjoy interacting with kids, but she still loved us by trying to keep us as healthy and financially stabile as possible. This also reflects some of the struggles she experienced when she was a kid dealing with food rations.

Love is something you do, not something you feel.

If they tell you they love you, they love you. But there are many, many different kinds and aspects of love, many ideas what love is. If they tell you "we love you" but you cannot feel or sense this love, you are both using the same word, but not the same idea of love. Or maybe you have even the same idea what love means, but have different ways and needs how to express and experience this love.

The key would be not to doubt their love but to discuss and reflect with them what they mean when they say "We love you", how they try to show you their love, how they want you to show your love, how you want them to show their love.

Sadly, for most people such conversations are very hard, if not next to impossible. Counseling, mediation or therapy can be helpful, if you've got access to any.

This might be paranoia. Try to check with a good therapist.

You don't. You just wait until it becomes clear that they haven't loved you and it was all for the drama.

Outside romantic relationships, the vast majority of people don't have to deal with false declarations of love, so there's no general method here. If you want to ask about your specific case you'll need to provide more information.

2 things they way they treat you normally and how they treat you when you are at your lowest.

To elaborate a bit more: did they do everything in their power to help and uplift you? Did they like spending time with you? When you did something wrong how did they approach it? What do you think was going in their head?

Like My Mom and father did everything they could do to help me. Even my father is heavily misguided, I chose to believe he was doing/saying what he felt was correct for me. Plus I never felt like a burden or unwanted. This is stark contrast to my SO mother who thinks kids are ball and chain and wishes she didnt have them.

Do they sacrifice themselves for you or do they sacrifice you for the benefit of themselves?

There's a poignant scene in Squidbillies where Rusty meets his "mama" and she was like "Oh i didnt want you to grow up in a home and parent who doesn't love you, or with her if she couldnt benefit from him in any way"

Her honesty about that is seriously refreshing. I had a mother who abused and used the shit out of us and would moan to make us give her permission to treat herself when her entire fucking life was a treat at our expense

Do they respect you as a person? Do they let you have your own space and life? Do you feel like they are being fair and reasonable with their expectations of you? Do they get mad so they have an excuse to write you off or ignore you?

A person who loves you will always be reasonable towards you and treat you like a human being. They won't be a perv and go through your stuff or gossip about you. They won't try to take from you, but fair expectations are fair.

In case of my mother: she does not say stuff she does not mean
Father: he is "simping" us children

If you do something bad and they beat you, they don’t love you. If you do something bad and they yell at you and make you fix it or help you fix it, they love you.

I would almost say the background doesn't really matter in this case. You (or someone you know) is being told by their parent that they love them, but there is obviously a reason to doubt it. What is that reason? I feel like there's much more behind your question that you're dealing with.

I take some time to myself to reflect, shum, and think about cabbage

You just do(?)