I agree. Moderate voters in the UK and the US have had little to choose from lately with Corbyn/Sanders and Farage/Trump pushing out to the extremes of their electorates.
Hopefully Starmer and Biden (Harris) represent a return to more normal times.
They will do but others will come again because a lot of people don't want a return to so called normal times. Seems to be a feeling that you can just rewind the clock back 10 years and everyone will be happy clappy but the reasons these people became popular have been decades in the making.