GP doesn't appear to be advocating for abolishing all tax. The thrust of it seems to be to abolish property tax and replace with a land value tax. There's no mention of abolishing income, capital gains, sales, use, etc. taxes.

Maybe don't attack a straw man you've stood up yourself?

I'm pretty certain Henry George would be very happy with pigovian taxes like a carbon tax as well.

Income tax it's definitely something he'd not prefer because it reduces incentive to do something we want you to do. Better to tax windfalls and undesirable things

My understanding is that Georgism opposes the kinds of tax you mention.