Good points. I am no Corbyn supporter but what you can do is mandate a sale of the percentage of the club (at least 51%) to the public over a period of time (could be 2-3 years) at the open market value. I am sure enough people will buy in. My main point is if there's a will, there's a way.
Also, people talk about investments. There are things that you just don't (or rather) sell like key infrastructure to outside parties. We've seen that with vaccine production.
The biggest 'capitalists', the US, are happy to flex their muscle and get better deals for their state by putting in really restrictive laws (again look at the pandemic, also their defence procurement laws).
And on the point of investments, these Americans have not invested in our (Arsenal/Man Utd/Liverpool) clubs, they have not added money, the Glazers being the most obvious case where they used us as an asset to get a mortgage and keep draining the club.