lordashcroftpolls.com/2019/12/how-britain-voted-and-why-my-2019-general-election-post-vote-poll/
Lord Ashcroft's break down of how people voted
I point the following paragraphs
39% of all voters said they found their decision harder than usual. Labour (42%) and Lib Dem (56%) voters were more likely to say they found the decision harder than usual than those who voted Conservative (32%). Those who voted Conservative and SNP were the most likely to say they found the decision easier than usual, with 27% of voters for both parties saying they found it much easier than usual.
44% of Remain voters said they found their decision harder than usual, compared to 35% of Leave voters.
Tactical voting
Just over a quarter (26%) of all voters said they were trying to stop the party they liked least from winning, including 43% of those who voted Lib Dem and 31% of Labour voters. One in three Remain voters said they were voting to stop their least preferred party compared to 18% of Leave voters.
Overall, 72% said they were voting for the party they most wanted to win, including 82% of Conservatives, 74% of SNP voters, 67% of Labour voters and just over half (54%) of Lib Dems.
39% of those trying to stop their least preferred party voted Labour, 30% voted Conservative and 20% voted Lib Dem.
Having something to vote FOR is a massive motiver. People need to believe in something...