I will provide one single real world observation of why I think you are wrong. The examples are legion, but one ought to do it as an evidenced example.
In 2010, public satisfaction in the NHS was at an all time high.
In 2024, public satisfaction in the NHS was at an all time low.
Come to think of it, I'll provide a second real world observation of why I think your viewpoint is poppycock...
The number of UK billionaires in UK tripled between 2010 and 2024.
The real terms UK median wage in 2024 is 8% lower than in 2010. (Which kinda refutes your personal anecdotal evidence of nice cars and fancy holidays!)
The evidence here is irrefutable.
First, deliberate mismanagement and ideologically-driven defunding of Public Services under Tory governments is irrefutable and unforgiveable.
Second, the huge widening gap between the wealthy and less wealthy is unsustainable - particularly under the environment where Public Services have been decimated - since the less wealthy do rely more heavily on those Services. And "trickle down" clearly is a complete and utter fallacy, judging solely on the real world evidence.
One thing that people tend to forget and/or disregard as they grow older, particularly the older of today, is that if you have been semi-successful you have climbed a bit of a ladder and have better pay and more accumulated "stuff" than when younger - and this is particularly true if you own your own home - whereas the challenge that the younger generation now face in getting onto the housing ladder is nigh-on insurmountable.
One needs to open one's eyes to those that are not in one's immediate or even extended circle before judging about more people having nicer cars and fancy holidays, because that kind of throw away "observation" is not substantiable when considering the entire population at present.
Public satisfaction is based on feelings. The feelings after the pandemic were low. No government was going to survive that strength of feeling
The number of rich people is pretty irrelevant. You're assuming that having more rich people means we have more poor people which is not the case. The rich people invest their wealth to get returns. The investments usually involve increasing profits for companies who employ more staff, who earn money, who pay taxes. The economy benefits.
Governments want the UK to thrive to boost the economy. Itr's how they choose to do that that counts. We know Labour will mess up the next 4 years and we know that the Tories, without or without a coalition, will return to power to remain for several decades until some other, third party event, changes the feelings of the people once more. History does rather repeat itself, politically-speaking.
I was modestly successful in lfe. I worked, was ambitious and ended up with a lot more than my parents ended their time with. Because of that, I can help my kids financially while I'm still around to see their development and will leave them my wealth when I'm gone. They will, I hope, use their inheritence to maintain and develop their lifestyles. I'm sure there are a lot of middle class families like mine.
When I look around and see those who can't afford homes, I see a lot of those who don't work yet crave the benefits of those that do, but without the effort.
I suppose I am using the house ownership, new cars and frequent family holidays as a benchmark of success, ambition and middle class wealth. But it's just an irrefutable fact of the modern age. Hard work brings its own rewards. Sitting around waiting fo rewards generally doesn't. It is the way of the world.