Awesome video 
Group-mentality is only positive when it is inclusive and community-based. Otherwise, it divides, demands people to fit into ideologies and strict ways of thought, and dehumanizes people outside of the group. It's exactly how you described it, it's a path to fascism. The extremes of Left and Right create a circle, and they both meet at fascist systems.
Also -- The insurrectionist method of claiming any small minority of a group of people can represent the entire group's interests as a whole is simply dangerous and wrong. Imagine the entire cryptocurrency community being represented by people ONLY invested in say, the ideologies of BCH SV -- That would be nonsense. The fact that the LGBTQ community is assuming all its members are "liberal" is just silly too, being liberal or conservative is more than just your opinion on gender / sexuality. It's also so many other factors, like economics, military expenditure, healthcare, rights to self-governance and protection, cultural values like what should be taught in education about right and wrong, environmental ethics.. This black vs white thing going on in the states and in other places is turning people who might otherwise overlap and get along in so many ways to just hate each other. Maybe someone who was Gay and someone who was ultra conservative, straight and traditional could forgive their differences in sexuality with their common ground in military pride, economic policy, and gun regulations. Instead, the gay person has to vote against his honest beliefs in order to remain a member of his community as a minority, and the conservative is pushed more against assuming the gay person as incompatible in every way with his visions. Simply counter-intuitive to the concept that we are a diverse peoples with many different thoughts and values in each person.
Great video again either way, I'll stop yammering now XD
RE: Thoughts Of A Liberal On Extreme Liberals/SJW