Ideologies create a bias, however, there is a separate issue of truthfulness. In the case of reporting on Trump by the more responsible outlets seems to be accurate. My main complaint would be inaccurate headlines overstating a situation at times. As far as accuracy goes I hold that as more important than quantity. Certainly, there are more against Trump than for, but the burden of evidence against Trump's actions and statements is impossible to ignore even if taken with a grain of salt. The supporting side of this administration is faced with that reality have resorted to gaslighting by spinning fabulous tales and ignoring what has been said and done instead. I find their "reporting" to be reprehensible as it does not serve our nation, our people and most importantly the truth in any way. Without the latter we cannot make informed opinions and our society as whole slides ever downward.
I do share concern when everyone who is not "us" is attacked on campus reflexively, however that does not mean everyone should go unchallenged. You speak of Communists and yes they often speak without challenge but their position is straightforward for the most part and usually is based on perspectives we may or may not agree with. Contrast that with what passes for Conservative attitudes these days where the base ignores or even embraces things that we've attempted to overcome this past century. A strong voice, Bannon, is accepted as a visionary while white supremacists are abundant on his e-rag. A person who is a child molester with little doubt is embraced or at least tacitly accepted by many. A tax plan that will hurt the many is being sold as a "cut" when it will be the opposite in some years, benefiting the few who need it the least. Embracing Russian interference in our elections... it goes on and on. Does this mean that the Dems are perfect? By no means. I still think that Hillary was among the worst of the lot, and the Dems embraced what I call "sectional" politics, that is selecting out groups at the expense of others instead of embracing the nation as a whole while admitting differences exist. I would by far have a Biden, but that was not to be.
All that to say I believe that there are valid perspectives which ought to be allowed to speak but what passes for Conservatives has poisoned the well to the point that they themselves have ruined opportunities for other rational lines of thinking. I shouldn't blame the Left so much as the Right as it has become.