Absolutely not, no. There are more ethical animal breeders, but there is no such thing as ethical animal breeders. That’s like saying there are good cops, even if they really think that it’s all in support of a fucked system, and having a hand in it and upholding that system is morally corrupt, point blank. You’re supporting an industry of abuse, there is absolutely no negotiating around that.
Edit: Also, purebreds are made up social hierarchy bullshit that genetically assassinates the health of the animal for stupid fucking egotistic reasons and is a fucked up thing to do to animals. They’re not a fucking scarf or a handbag, they’re living, thinking, feeling entities.
Literally the only ethical way to have a purebred is if it’s a rescue. Supporting breeders is fucking corrupt at its core and that applies to buyers and sellers.