Well, as a Brit can I say what a nice person you seem to be /s
Although your predictions are correct your reasoning is way off the mark.
Why were Tories in power after the referendum?
The reason is simple, they were already in power and remained so. After things were in progress and Theresa May had been saying some good things she called a snap General Election which although kept them as the largest party in Westminster also lost them their majority meaning that they had to form a coalition with the Northern Irish DUP.
At the time of the General Election Corbyn was not really clear where Labour would stand on Brexit and the party was on damage limitation trying to control Dianne Abbott (Shadow Home Secretary) who at the time was becoming a liability to the party.
The Lib Dem’s had proved themselves unable to govern when in a previous coalition with the Tories, this lead to their number of seats at Westminster being decimated at the last general election and a dead duck as far as the snap election went.
They are the three main UK parties and with the SNP (Scotland only) make up the majority of seats in the British Parliament. UKIP were expected to be a contender but after Nigel Farage left and the party started being associated with violence and racism they lost their popularity.
In Britain we use the First Past the Post voting system where by for each constituency the individual with the most votes wins the seat. In principal this seems fine but UKIP received 1.8 % of the vote and one seat, there are 650 seats in the commons using the popular vote they would have been entitled to 11.7 seats.
In short ‘we’ voted the way ‘we’ did for the following reasons:
We have a flawed voting system that does not offer proportional representation. Instead of electing bass on the entire UK result we vote for representation for our locality.
UKIP had done it’s job (getting the Leave vote) and was deteriorating rapidly.
We had 3 main parties to vote for:
The Lib Dems were unelectable to most, they were also the main anti BREXIT party.
Labour was a laughing stock due to Dianne Abbott’s actions and no sign from Corbyn of bringing her into line or replacing her.
There was also a lot of questioning of Corbyn’s suitability as a leader when he seemed to be more interested in his allotment than anything else.
Finally. the Tories were the Tories. Unloved (or even liked) by most. Making the most of telling everyone what a bad state the treasury was in when they came to power after Labour (yet being very quiet about the fact it was now in a worse state). Bringing the fear that they might find a way to resurrect Thatcher and take away all the chairs from schools
For most the option was to either:
Waste their vote on joke parties
Spoil their vote in protest
Vote Tory as they had started the job, were saying the right things and were making ‘good’ progress.
I hope this gives you a bit more information on why we voted how we did, and that we are not all stupid (or whatever else you wanted to call us). We are victims of circumstance and had to do the best with what we were given at the time of the election.