This question should be linked to "what improvements to public services have you seen?"
It isn't just about tax rises. There are two parts to the problem. How much tax revenue is generated, and whether it is used efficiently.
At the moment, we have public services that are sub optimal, armed forces that are under resourced, and an economy that is struggling.
All of these things require investment to resolve. The only place that comes from is us, via the taxation revenue. We have one of the lowest levels of taxation. I agree with @Poppingby in that I think there should be higher taxation, but only if it is deployed wisely.
Quite frankly, I haven't trusted a government to do that in a long while. Coupled with Brexshit, the pandemic, war in various places we are really in a pickle. It is going to take a brave PM to take the measures necessary to get the money in, but if they do deploy it wisely and people see change, then they may just get away with it.
I used to be a high earner and have paid a considerable amount of tax over the years, I have since switched to running my own business where the employers NI changes made it impossible to hire anyone which is now limiting growth. However, I have seen reductions in waiting lists at hospitals in my area, and we have had a police station open in town that the Conservative party closed. That is to name just two items. There are many more.
I think we have to recognise the reality of the situation the UK is in, and accept that we will have to collectively dig deep. Lets hope that the latest Chancellor does a better job of collecting from more appropriate places than the last one did. We live in hope.