First they hook you with benefits, so you’ll always vote for the party that gives you benefits. This turns the population into compliant, lazy, unassertive, unquestioning sheep. Took 50 or 60 years, but it was effective.
When the herd-followers are consistently voting for the left, then you unleash the true agenda: total fascistic control. It can be done by taxes, healthcare, speech laws or repression of dissent. Or all of them.
Once they are in total control there’s no going back. You have them in the palm of your hand. You progressively tighten the screws until you get modern-day Canada: sheep who love to watch hockey. You can begin eliminating the old ones, the ones who remember how things once were, but are no more.
Eventually the government will mandate it.. like COVID-19.