Its a precedent that’s been in effect under dozens of prior administrations. You govern the country with the tools you’re given. Or you don’t.
It’s a precedent because presidents take power–not use the power they were given–and then the courts eventually say, yeah, okay, we guess that the constitution doesn’t really apply here after all. Then it’s precedent for the next president to take even more power, and repeat. I give it the thumbs down because even though it means that a good president can use that power to accomplish good things, it means that a shitty president can use it to do enormous amounts of damage in a very, very short period of time. Supporting that kind of trash means that you’re handing the tools of your own demise to the people that want to tear down democracy. You can support that if you want; I won’t.
In point of fact, Obama’s restraint did put constraints on Trump. It meant that he had to go to court multiple times over things, and he lost on a lot. Like his Muslim ban; remember that? If Obama had greatly expanded executive power in the same way that Trump did, then Trump would have had far, far fewer court challenges to act as speed bumps.