Mostly, yes. There is an element of people who have voiced that they wont vote because of the leadership change, but thats all well and good shouting that on whichever social media you prefer, to make some sort of statement. What they do come election day whenever it is in the next 18 months or so, is a different story.
I am not behind the current leader at all, and backed the last leader. I joined the party because of the last leader and left within a year of the current one. Its like any change in any management regime. I felt included under one and isolated under the other. I am also in the South East of the country, which is Tory Central all around, with only the LD seat in Amersham (bi-election), and red seat enclaves within 30 miles being Oxford East (also Layla Moran has an Oxford seat), Slough and Luton, so I make diddly squat difference to anything at all.
But I dont want the Tories in government, and that means whatever it takes. I will imagine, where I am, it will be tactical voting for the best non Tory outcome, which is as much as I can do.
This 'Long Corbyn; thing really needs to stop, and its from all sides of the spectrum, Starmer has made his example and done what he feels he needed to do, and has had his opposition. Its almost three years since Corbyn stepped down as leader, and he is stil lthe bogeyman. I suspect he will be until he retires from front line politics. He is used to cause factions, deliberate or not in the party, which does no good at all. The Tories still have a hardon for Corbyn, despite the nuclear damage done to the country in 13 years. but Im digressing from your question.
People have a right to be disappointed, whether justified or not. Corbyn galvanised people in a way Starmer doesnt, in my opinion. I get the impression Starmer doesnt want people 'like me' around the party, so I made it easy for him and went. But whatever my feelings are, my feelings for the Tories, as evidenced in multiple posts here, cannot override my will to get them out at the next election, and I would say most in my position would be of the same countenance.