Uh-oh. He's in real trouble now.

Petition launched to oust Sir Keir Starmer, the new UK prime minister, almost reaches its goal
[change.org]

Rules: Petition Parliament and the government

Create or sign a petition that asks for a change to the law or to government policy.

After 10,000 signatures, petitions get a response from the government.

After 100,000 signatures, petitions are considered for debate in Parliament.

In other words, this petition WILL be considered for debate in Parliament.
This is probably unprecedented... wow... interesting times.