Peter Hitchens talks sense as ever. PR would be a disaster for Westminster.
With progressive federalism combined with proportional representation, at least voters would actually get the government that has been voted for.
For example, the voting patterns in Scotland (and my native West Midlands) and the government returned since 1979 have been as follows under the FPTP system:
1979 - Mainly Labour, got Conservatives
1983 - Mainly Labour, got Conservatives
1987 - Mainly Labour, got Conservatives
1992 - Mainly Labour, got Conservatives (only just, due to a late swing in the day to the Conservatives)
1997 - Mainly Labour, got New Labour (which were not new, and were most certainly not Labour)
2001 - Mainly Labour, got New Labour (which were not new, and were most certainly not Labour)
2005 - Mainly Labour, got New Labour (which were not new, and were most certainly not Labour)
2010 - Mainly Labour (with the only constituency changing hands was my former one of Glasgow North East from Speaker to Labour), got Conservative-Lib Dem coalition
2015 - Overwhelmingly SNP (with 56 out of the 59 constituencies, with the remaining 3 being 1 each to Labour, Conservative, and Lib Dem), got Conservatives (only just, due to errors in the polling methods)
2017 - Mainly SNP (reduced to 41 constituencies), got Conservatives with some support from DUP
2019 - Mainly SNP (increased to 48 constituencies, including the unseating of the Lib Dem leader at the time Jo Swinson. Her lips moved with every single word she spoke which explains how Swinson lost her seat), got Conservatives
No matter what the voting pattern of Scotland is at General Elections, since 1979, Scotland has not had the government it has voted for. Although I do understand the reasons how Scottish nationalism has become fashionable nowadays, I do not support the SNP's version of independence. I would like to see the whole of Great Britain (assuming Northern Ireland is returned back to the Irish) having progressive federalism, but this topic would be better in a different thread rather than here.