Yes Joe, he should have fixed it all, after he was done working on the Mueller witch hunt, couldn’t get a border wall funded by a GOP Congress, an impeachment and the CCP virus. DC was filled with people just waiting to help him fix the corruption.
Frankly there is no one who can fix it. Not even Trump, though he will try. If anything, he throws a huge wrench into the deep state, corrupt machine. He fights. That is worth it.
As someone earlier replied, not only did he not drain it, he deepened it.