Historically that hasn't always been the case that the community was united. There were a lot of gay men that were sexist and transphobic after all "platinum homosexuality", meaning a man birn by c-section so they have never seen or touched a vagina, doesn't come from people who aren't misogynistic.
There are absolutely transphobic people in the community and its the job of the non-transphobes to fix that.
"U.S. citizenship
Have a valid driver's license.
Be eligible to carry a firearm.
Previous experience in a primary (rigorous) law enforcement position.
Successfully completed basic law enforcement training.
For males born after 12/31/1959, Selective Service registration is required."
That's your qualifications. The fact that you have previous primary LEO experience is when you were tested.
ICE agents, from my understanding, aren't doing anything that other police aren't doing from a day to day tasks perspective so they don't require new testing/training.
You could cause a massive death event in the West/developed nations plus China and India which would slow things a lot though I'd argue killing billions isn't the ideal solution.
"...when I’m upset (which is admittedly ~90% of the time but I can’t control that)."
You should note that you are talking about your anger which you recognize is a problem for you and others. Yes it is a turn off.
You might currently lack the awareness and skill set to control your mood but this is something you can develop through therapy. It is literally what therapy is for. I hope you find what you need to resolve your anger.
Edit: You might find after having a discussion with a therapist that "your reasons" for being angry may not be justified or might be inappropriate responses due to things entirely unrelated to the matter at hand.
If you only contacted them once and then they banned you across several platforms ypu really had to cross a line.
I get that you are striving to find a way to make yourself out to be in the right but with every comment you make it clear that isn't the case. Your behavior here really supports the notion that you just don't understand how far off the mark you were.
I dont think this is part of anything organized. It makes more sense that this was just a racist asshole murdering people.