Earlier quoted context omitted.
Here's the primary problem with your argument: the current front-runner to win the next election is the Conservative Party of Canada, with Pierre Poilievre as leader, and pretty much a shoo-in for the next Prime Minister. Poilievre is a career politician who's only professional experience has been as a politician, has no work history to speak of (don't take my word for it, his wikipedia entry details only a job as a…
Justin Trudeau was a ski instructor before becoming Prime Minister. Ronald Reagan and Zelenskyy were ridiculed as an actor in their election campaigns. Poilievre is a career politician and unproven at the highest office, but that by itself should not disqualify him. Knowing who to delegate to is 90% the job of a good leader -- the other 10% is public speaking and being charismatic.
Trudeau was also a secondary school teacher, acted in a tv movie. He also reputedly worked as a bouncer and worked in various (heavily politically affiliated) non-profits. He had a career before politics.
That said, my primary point is that Poilievre hasn't been a particularly effective politician, and his reputation is largely that of a blowhard who's main appeal is that he is not Trudeau.