It's because they don't actually listen to our arguments, in their head we're all just "misogynists" and anything we say HAS to be dismissed out of hand. I'm not Anti-MGTOW, I see these people slowly getting Blackpilled, just like with Anti-PUA's, only PUA's are fully redpilled and that's because most of them are Chad's and Chadlite's that think that any man can emulate them, so the Blackpill just flies over their heads.
MRA's are people that want to fight gynocentric society and gynocentric laws by giving men and boys actual equality through social awareness of our struggles and issues, many MRA's are female while MGTOW and Incels are exclusively male.
The fact that Bluepillers just call all of us as "loud misogynistic arseholes" without ever addressing a single point we made just shows how deep they are conditioned to hate us.
"Alpha" is a mindset and not one that is necessarily based in psychology, some aspects are, but the thing about being "Alpha" is passing a toilet's endless shit tests, meanwhile Chad's can fail shit tests and never get rejected, a Chad would probably have to fail thousands of Shit tests before he gets treated as a Chadlite.
I largely agree with Wheat Waffles that the different pills have different uses, in fact I'd even introduce a fourth pill, the Goldpill, for moneymaxxers in societies of scarcity, but this pill has been quickly becoming less relevant since the early 1800's.
Their hatred of us is all based on the same, it's the general hatred of "undesirable males", we are actually a lower caste in society and daring to say "we exist" immediately makes them want to exterminate us.