The only reason Trump's base cares one whit about FISA is because it was used (yes, quite illegitimately in my opinion) to spy on Trump and his campaign & staff

The only reason Trump's base cares one whit about FISA is because it was used (yes, quite illegitimately in my opinion) to spy on Trump and his campaign & staff in the runup to his inauguration. If they actually care about mass surveillance and such, why doesn't Trump put forward some proposals and measures to reign it in? Instead he is seeking to expand it with his AG trying to ban E2E encrypted messaging.