The limiting factor is money. Conquest through capitalism is the only tangible way I see of overcoming capitalism in the short-term. Once it becomes unnecessary and support is there then it’s discarded and attention is turned on capturing the state. But to do so we need the weapons of the capitalist state in our own hands.

As an example. Anti-landlordism is a prime opportunity to gain momentum. A renters union could really undermine the market but it would have to be on the promise of lower rent, which would require the money to make up the difference in the mean time. Suck people in with “10% of your rent!” and pay the difference. When you control enough of the market you demand lower rents in the area. Do it through a limited company to protect the union and take the liability off the people who’re renting. Identify weaker landowners who can’t deal with protracted legal battles and offer them a pathetic amount for their properties. Hand these off to the people and take a much smaller rent in return. - No ideal in the name of socialism but necissary for conquest by capitalism.

It would be strong-arming the middle-class and sticking them with mortgage debts. And no doubt if this happened in America it would end in a hail of bullets…so it would be better achieved somewhere else in the west.