Labour have dropped to 17% because their left wing has moved to the greens, Libdems and nationalists. Reform support has stopped growing at 25% and that's mainly Tories moving across. The only people that harp on about "two tier Keir" are the extreme right wing loonies.
Absolutely. Labour betrayed their core voters, who are looking for something else, but won't touch Reform UK because they're even more disgusting than the current right-wing Labour-in-name-only government.
No true scotsman
But it seems mostly due to a revolt against the "two tier Kharmer" policy of the current government: where normal people are jailed for online posts while others are free to break a female policer's nose at the airport and then be let to walk free by the judge and while others also get to rape hundreds of girls on an industrial scale and enjoy a nation-wide cover-up attempt (thankfully foiled) by the state...