I think there will be heavy geographic sorting between the Labour North and Lib Dem south, and the Tory seat share is being overestimated. I would be unsurprised if the Lib Dems clear 40% of the vote in London, and take a majority of seats there. If I had to guess what partiament would be, I'd go with:
Conservative: 257
Labour: 236
Lib Dem: 82
SNP: 50
DUP: 10
Sinn Fein: 7
Plaid Cymru: 4
Brexit: 3
Green: 1
In terms of the percentage vote, I'd speculate:
Conservative: 31.4%
Labour: 29.3%
Lib Dem: 22.6%
Brexit: 8.7%
SNP: 3.4%
...
This would pretty clearly lead to a Lab-Lib-SNP Coalition, which is probably the best thing Britain can hope for.
You believe that with current polls showing the three leader satisfaction rates of Johnson +2, Swinson
-12, Farage -22, and Corbyn -60. That +2 for Johnson is the best for any leader since 2017 that
1. the Conservatives will lose 51 seats
2. Labour only loses 7
3. the Liberal Democrats gain 61
I think you are just picking numbers out of the air.
You dream of the Liberal Democrats skyrocketing to 40% in London. Election Calculus is predicting the following numbers for London
2019 2017
Conservatives 29.5% 33.1%
Labour 34.2% 54.5%
Lib Dem 21.2% 8.8%
Brexit/UKIP 7.8% 1.3%
Green 5.5%. 1.8%
Other. 1.8% 0.5%
Do you also release 40.7% of voting Londoners voted for Brexit
Where are the Liberal Democrats to get the extra 18.8%.
80% of Conservatives are satisfied with Johnson. 9% are dissatisfied. 11% do not know
Labour is 46% - 49% - 5% concerning Corbyn
47% of all voters think Johnson has done a good job handling Brexit. 45% think he has done a bad job.
84% of Conservatives approved.
Corbyn’s rating for handling Brexit is 11% good and 79% bad. Labour voters are divided on Corbyn 37% good and 52% bad.
40% of the vote for the Liberal Dems is a real leap requiring the absolute collapse of the Labour Party. I wish that would happen. It would end the the threat of Labour to Britain. But unfortunately it is not going to happen.
I think it best for Britain to leave an EU