Nit: It's Parliament cannot bind a future Parliament rather than UK governments cannot bind future UK governments. https://www.parliament.uk/about/how/role/sov

Nit: It's Parliament cannot bind a future Parliament rather than UK governments cannot bind future UK governments. https://www.parliament.uk/about/how/role/sovereignty https://www.parliament.uk/about/how/role/sovereignty The subtly here is that usually a government commands an overall majority of Parliament, but weak/minority governments have to worry about government rebels.