There is a lot to unpack here, and I promise I will not be able to address all of your questions. But I will try.

First the overall problem I have with American democracy is that it is controlled by a single class of people who will donate equally to the two parties to ensure that they will get what they want regardless of who gets elected. These types of donors aren't concerned with individual rights like abortion, protesting, police brutality, racism, housing etc. They just want to make sure that funding for foreign wars and arms deals aren't interrupted. So the wars in Ukraine, Israel, afganistan, iraq, the various arms deals with saudi arabia, japan, morocco, the EU, municipal police etc etc are never in-question.

The second problem is the delusion that the populace has any control what-so-ever over public policy. The congress and the senate operate entirely without oversight. The incumbent advantage is overwhelming. In the last 10 years the US has re-elected at least 3 people who could not be described as functional humans to the senate. (Feinstein, McCane, McConnell), these senators shouldn't have been fit for office AT ALL. But the fact that they are able to be re-electice is indicative of the problem. So when a captured institution like the Senate starts to encroach upon presidential powers it is cause for alarm.

The president is by design more receptive to the public then and of the rest of the federal office holders. So when a bunch of corporate mouth pieces start to get upset about a president rejecting defense pacts that amount to 100 of billions of dollars a year in defense contracts I see cause for concern, even if the wolves bipartisianally agreed to eat the sheep.