By saying you support "All Lives Matter", you STILL are supporting the Blacks, and also the Asians, Russians, French, Australians, Mexicans, Latino/Latina, Egyptians, Indians, Native Americans (Among many others), women, LGBTQ+ people, democrats AND republicans alike, people of other religions, and just people you disagree with in general.
Oh, but I guess that means you also support ISIS, terrorists, criminals, pedophiles, rapists and untrustworthy government and police forces.
And by saying you support "Straight Pride", you support the Trans, Asexual/Aromantic, people of color and other religions who also happen to be straight.
You're system is flawed and you're stupid and don't know what you're talking about. You can't prove me wrong.