My problem with modern liberalism as opposed to classical liberalism is the classical liberalism was a worthwhile academic exercise designed to promote creative and independent critical thinking where all opinions could be freely exchanged. Modern liberalism has been hijacked by socialists, communists, social justice warriors and others bent on teaching propaganda where dissent or contrarian opinions are not tolerated. Modern liberalism has essentially become a "conform or else movement". Note how skepticism is not allowed in the climate movement and how conservative speakers are banned from speaking at universities, the list goes on.... Modern liberalism of that type is not even liberalism by the classical definition. Our founding fathers were schooled in classical liberalism that taught the importance of keeping an open mind. Probably part of the reason that the founders are now under such virulent attack.
Dave