You say they are buying up a disproportionate amount of housing surely if that was the case there wouldn't be a shortage of rental properties? If not BTL leanldords who should own these needed rental properties that are clearly needed for people to live in?You're being ridiculous. There is always a place for renters and therefore landlords. The issue is that for a long time now, BTL landlords have been able to take a disproportionate amount of the available housing stock because its guaranteed money. You get an interest only mortgage, 10 years later your asset has nearly doubled in price, you have been getting an income from it for those 10 years and you continue to watch this trend until you cash out.
They are very much exacerbating a bad issue. No one is stating that we don't need landlords. Thats not the issue. The issue is how attractive crazy house prices have made being a landlord to those who have the initial capital to invest. That very much disadvantages young homebuyers and inflates prices even more.
Yes when we build enough houses this issue will be solved but you are trying to absolve a group of their part in the mess by making out that they have no say in it. They do.
It has only been a way of making money because of a systemic inability to build sufficient housing, the property prices are simple supply and demand if there was more housing there would be less competition and then lower prices.