A vote of No confidence in the uk prime minister by the uk electorate and public

The UK prime minister Theresa May has demonstrated a complete lack of regard for her country by repetedly undermining the Referendum vote of Leave the EU. It is now apparent that the prime minister is unable to lead the country.

We can't accept petitions about appointments, which includes calling for Ministers, including the Prime Minister, to be sacked or for a vote of no confidence.

We used to accept petitions that called for a vote of no confidence. However, the Petitions Committee can’t schedule votes of no confidence. This was often frustrating and disappointing for petitioners.

If you're concerned about a particular policy or decision that's the responsibility of Government or the House of Commons, you could start a petition about that.
Petitions calling for action on policy are more likely to be an effective way of achieving the change you want.