"Netanyahu ran campaign ads about how he undermined and disrespected Obama"
More accurately, he ran campaign ads arguing that he fought for Israel against the Iran deal. He further presented himself as a victim of Obama's disrespect, especially since the 'shoe on table' incident.
[EDIT:
"while getting Obama to give him a record $38 billion aid"
Longstanding American policy to bolster its client, also a part of the Camp David accords. I do think the aid agreement should not be renewed next time since it's counterproductive to both sides.
]
"He colluded with Flynn and the Russians to undermine Obama and promote Trump."
Wrong. Note however that focusing on this conspiracy shows where the true power lies. When America interferes in Israeli politics it does so openly and without even much mention, because there's no point, it's that powerful (e.g. Clinton helping Peres and Barak, or V-15's funding).
"He gets whatever he wants from the US."
That's why he got the same terms from Obama as he did from Trump, right? After all, it's the same Nethanyahu. Nah. It's American policy that changed.
All your list is part of Nethanyahu's mystique ("I speak perfect English! I can get the Americans to work in our favour! Even when the administration doesn't support me, because I have so many connections and am so convincing it doesn't matter!"), which is very good for him electorally, but most Israelis have woken up from that.
P.S.
"That's more US political power than Chuck Schumer."
That's a trick question, right? Since Schumer has almost no power - no stage presence, minority in Senate. He can't even threaten the filibuster.
(What would he filibuster? The Judicial filibuster has been cancelled, and the Republicans barely have a legislative agenda.
After the GOP keeps majority, everything will be decided by Biden-GOP negotiations, and Schumer will have to sign the dotted line.)