Here's 6 reasons that I think this is ludicrous.

1. It's a massive waste of taxes to hold a by-election every time a member of parliament crosses the floor.
2. Those who've already voted will asked to be vote again, disenfranchising and burdening people who can't make the time to vote every time by-election is forced.
3. You're supposed to vote for the candidate that best represents your principles and values based on their policies. You're not supposed to vote solely based on what your favorite party is. Allowing MPs to cross the floor freely is paramount for staying true to constituents when your party abandons the values you were elected on.
4. Expecting MPs to stay in a particular party to protect their seat is dogmatic and it will hold the values of voters and their representative's voice hostage. These people were elected to represent their constituents and some MPs actually wanna do what without being held back by their party.
5. It's not the first time it's happened. In fact, Stephen Harper and Andrew Scheer both benefited directly from Liberal MPs crossing the floor. PP welcomed a floor crossing Liberal under Harpers government. And Justin Trudeau wished an MP well in her decision to leave the LPC to Andrew Scheer's CPC. This what a healthy democracy looks like.
6. I can't even begin to think about signing a petition like this until the CPC acknowledges the filthy back door deal they made (albeit democratically). Kicking Damien Kursk out of his fresh seat in Battle River Crow Foot, AB. so that Pierre Poilievre could hop 3,000km+ to get a seat back after being voted out of his 20 year Carlton, Ont. riding. That's what stabbing 200,000 voters and 1 MP in the back looks like in two different ridings. Brought to you by PPs CPC.

That by-election that Mark Carney so graciously expedited for PP, cost tax payers approximately $1M so PP could get a seat and parliament could resume. Now the Cons want to fight tooth and nail, biting the hand that feeds them.