Not only are left actions more extreme, but also their culture.
Flag kneeling, defund police, tear down other institutions, destroy statues, rewrite history, remake the supreme court, free college, excessive immigration, sanctuary cities, demonizing ICE, choosing pronouns, campus ultra-activism, antifa, Drew Brees situation illustrative of radicalism of sports, doxxing, tech media bans on conservative media and even white house staffers. None of this would have been mainstream in the dem party even 5 years ago, but it is now.