I'm not sure this is done with as malicious and conscious intent as your comment seems to suggest though. The Cons are seeing their voter base go hard right into MAGA land, and they know they need to follow to remain being electable. It's pandering to their base that led to the Republicans to end up with nutjobs that make Sarah Palin look moderate, and it's that same pandering the led to Daniel Smith making it to (and holding onto) office. And this voter base shift is also affecting the Liberals - the disillusioned former Conservative voters that didn't jump aboard the choo-choo train to wackoland still demand their voice be heard. So Liberal politicians will have to make more changes to their stances to reach out to them, resulting in a gradual shift right for them as well.