You still see it quite a lot, but yea the environmental argument has been getting a lot more traction recently. I guess it's simply due to the fact that "bitcoin is bad for environment" is a lot easier to grasp for the masses, whereas the scam argument takes a slight bit of brainpower lol.
It's hard to call something a scam when it existed for 12 years, has been a stunning success and there's zero evidence of things that define the word "scam". And the argument about environment is successful because environmentalism is on the rise, and there's a grain of truth to it, but no one asks what "bad for the environment" exactly means and what are the implications of it.
I'd argue that people not buying bitcoin is actually them somewhat voting with their wallets.
The fact that people are not buying Bitcoin is not affecting Bitcoin's price or Bitcoin network.