Labour for many years been doing the opposite of that which they should as far as propagating a socialist ideology.
Capitalism is evil and the worst ideology in existence. There should be no difficulty in making it unpopular. Some commentators recently have been saying that capitalism is becoming more and more unpopular in the last few years anyway and that covid has helped in this...
Selling Socialism to the poor and the under dog should be as easy as selling half price booze to alcoholics!
I've long thought that Labour are missing many tricks in as much as not demonising capitalism, not shoving socialism down peoples necks, not demonising the super wealthy, not making a huge effort to get out the Labour vote in areas where most people are both on benefits and usually don't involve themselves in politics and don't vote. Yes the vast sink estates are where there are the most unemployed, and where most of the ex convicts, the alcoholics etc live, and it's just such people who almost never vote and have most to gain from a Labour gov.
Really target them and get them out voting! let the tories try and use it against Labour, make hay from it. tory monetarist greedy dog eat dog policies have left these people reduced to this generationally. Push the point that tory policies make the rich richer whilst crushing people like them.
Did anyone see "The decade the wealthy won" ? There was a grinning from ear to ear george osborne saying that yes of course when quantitive easing happened all that money went to those who already had assets and wealth and they got even more stinking rich overnight, as if it was a given, natural and right and only a complete cretin would have thought otherwise or had a problem with this! Show the poor what ****s such types really are! make them the enemy!
They should be pushing the "them and us" thing and demonising the wealthy owner of two homes with 4 cars etc, making it clear that they are the enemy of such people and that such types will suffer under Labour in order that those at the bottom end of the food chain can have a better life... much as the scum party demonises the so called "benefits scrounger" etc etc. Advertise the fact "He earns £120K a year and makes another £60K from shares whilst he sits on his arse! He only pays 3 times more council tax than you do on £10K a year! tories want to keep him happy and you ground down and exploited!" etc etc
Yes all this will make them vastly more unpopular with the accountant from Surbiton who drives a Merc... but they were very unlikely to get that vote anyway and would have needed to do very silly things like erm.... trying to be a tory lite... in order to do so
Sell socialism to society Labour!!