Asking the same type of questions with the same type of answer and only providing same debunked evidence is not asking legitimate questions, it is sea lioning[1] combined with a gish gallop[2]. He is using his polite tone to convince us that he is acting in good faith.
Do you think it’s plausible that a person has been so curious on this topic that they’ve done deep research, can pull up such hard to find data that it takes them multiple attempts to find some esoteric source that supports them, and they didn’t find the high school level answers to the questions they are asking and require us to debunk each and every point they throw out without ever engaging with your counterpoints?
You’d have to believe that this person is incredibly competent at research while being simultaneously incapable of grasping the basics. You’ll notice he never tackled any point or counterpoint there. Just kept posting new sources as they were discarded while complaining that no one would look.
[1] https://en.m.wikipedia.org/wiki/Sealioning
[2] https://en.m.wikipedia.org/wiki/Gish_gallop
Edit: sorry, missed that this was a sibling thread. If you missed it the same user elsewhere in this post is also trying to argue that he was kicked off a Reddit merely for bringing up the unassailable point that cops only arrest black people more because they are inherently more dangerous. I assume you can see why I’m pointing out that the poster is unbelievable. I am already confident that they are not posting in good faith and only doing counterpoints for random third parties who might read this thread and be persuaded by the poster due to the lack of any counterpoint
Double edit:tbh this actually had the hallmarks of a 4channer mocking us to their buddies. I was one of those assholes in my youth and recognize the tactics. His “I just wanted to post, ‘{controversial statement}, Thoughts?’” is an easy bait sentence that brings out all the free speech absolutists to defend you for just “asking questions” while talking past the group engaging with the {controversial statement} portion of the sentence.
If you have not been on 4chan/8chan/2chan/whateverPermutation boards and wish to engage in internet debate it would be illuminating to observe. In between the gore and the shock porn they have random threads where they openly discuss using these tactics as they believe “normies” won’t be able to stomach their shock content to read deeply into it