[Golden Eagle]

Because that could require them to litigate every single act a president took while in office. Every single one.

It would only take a couple of rulings for them to say those were official acts to shut down much of anything else being raised that appeared to be an official act by a President. The other options are worse - to say there is full immunity for anything a President does while in office (0% chance of happening) or that there is no immunity at all (what you are talking about - a deluge of cases prosecuting Presidents - would happen then).

[Harmless Teddy Bear]

It would only take a couple of rulings for them to say those were official acts to shut down much of anything else being raised that appeared to be an official act by a President.

No. It wouldn't.

That is what you are missing. There are people out there with limitless time to file suits and they would.

to say there is full immunity for anything a President does while in office

That is what the case is now.

I know Trump chaffs you like sand in your underwear but what you seem to want to happen is a very bad idea.

Unless you WANT the entire government to fall apart.