You seem to completely miss the point!
Yes, we all know how the housing ladder works, but what about those who for some reason haven't built up equity over the last 20 years? This is generally younger people trying to get on the property ladder, but can also affect other people, for example like me who earn decent money but had a chaotic personal circumstances in their 30s. The fact is that if you haven't been able to build up equity, can't get help from the Bank of Mum and Dad, don't have significant inheritances to come or are not otherwise independently wealthy then just putting a decent roof over your head is very difficult (if not impossible) and can leave you in very insecure circumstances. No wonder mental health issues are so common these days.
No one is labelling house owners as wealthy and looking to tax them, quite the opposite. We need to help people afford a decent home against the backdrop of stagnant wages and a delinquent housing market. It is ridiculous that a person living on their own on the most common salary is condemned to living in poverty and that a couple living on twice that amount would have a very insecure lifestyle and struggle to bring up children.
I agree with you about minimum wages and encouraging businesses to invest and employ more people, and yes, there are plenty of empty nesters who are worth a lot of money due to the value of their property, but may (or may not) be cash poor. The issue remains that wealth is flowing to the very rich, stagnant wages, the middle class is getting poorer and poverty is going up. It's not surprising that fewer people are going out to gigs, especially in the less affluent parts of the country!