The media tend to be liberal, so it's natural for them to be less vulnerable to anything that may be fake but the distortions are often incredible- the media tried very hard to prevent Trump's election and make no mistake- they got Obama elected. Don't tell me I'm racist for writing that, either- he had my ear at the beginning until he started talking about getting things done through redistribution of wealth. No POTUS or Congress has the power to do that, nor should they.
The hard left aren't in power? I beg to differ. We have several in Washington who aren't only Left, they're actually Leftist and that's dangerous. Personally, I would like the extremes from both sides to go and pound sand while the middle gets things done, but that's not going to happen.
What you call 'draconian measures' are, aside from the Mexican tariff threat and additional guards, very similar to what was happening during Obama. The difference is that this year, according to the link, more apprehensions have been made than any time since 2007.
The US has immigration policies- the Left don't want to enforce them.
https://www.pewresearch.org/fact-tank/2019/04/10/whats-happening-at-the-u-s-mexico-border-in-6-charts/
If you don't think the US is doing something about pollution, look into it- our air, water and land are far cleaner than it was before 1970 and we have more than doubled our population.
You can tax people to oblivion and it won't make all of them comply.
WRT BLM referring to Blacks killed by the Police- if they wouldn't fight, run or carry weapons illegally, far less would die in those situations. Yes, some cops go off the rails and it needs to stop, but if you look at the info about chases, cops killed by felons who are carrying guns and the number whose immediate reaction is to fight, you would be surprised. The first duty of the Police is to ensure safety by taking control of the situation and neutralizing the threat- an unarmed person can still be a threat. In the US, a small segment of 13% of the US population commit about 90% of the murders- how would you address that?
https://www.theroot.com/here-s-how-many-people-police-killed-in-2018-1831469528
WRT White Privilege- that's going to take a lot of work and time to solve.
#MeToo- that's not just an American phenomenon. I refuse to believe that it doesn't happen in other places.
Universal Health Care- the problem of the high cost of health care in the US is due to the insurance companies. THEY collect the premiums, deny coverage and save as much money as they can as a way to make their shareholders happy. Take them out of the equation and rates will be much more reasonable.
The Left and The Right have moved away from the center.