And in general this sort of thing doesn't happen overnight; there's a process to things. It's like the old quip on how someone becomes bankrupt: "very gradually, and then suddenly all at once".
I don't know what will happen, but it's a dangerous path to walk. Maybe the next four years will be sort-of okay-ish, but what about the state of things in 10 or 20 years?
In large part, democracies work because we all believe it should work, and once that belief goes out the window for a critical mass of people then you're playing with fire.
The GOP in general has been engaged in scorched earth politics since Obama: all that matters is a win today and doesn't matter what conventions or institutions get damaged in the process. A healthy democracy would have disqualified Trump from running again in 2020. It would not play highly nihilistic power games with the supreme court. etc. etc.
It's absolutely not a healthy state of affairs.