I agree with OP to a degree as I follow certain scandi/eco toy hangout Facebook page and cloth nappy pages, and there are certainly people who meet OP scathing description, but there are also many more who enjoy these things sensibly. So going through the original list...
Cloth nappies, we cloth nappied, used disposables when it was easier to (holidays, night time for a month or so at the start) bought second hand, never got into the pattern obsession, my logic was that dd mostly had clothes on over the top so you can't see the nappy anyway. Have had no issues selling the plan, discoloured or faded wraps on, so clearly there are many other parents with the same view.
Baby wearing - tried a few options as our needs changed. Mostly stuck with the ergo I bought first of all, even though other carriers may have worked better, but you learn as you go along, and we managed with it.
Breastfeeding -still going at 2 years old, it's my dd who is obsessed with breastfeeding not me!!
Baby led weaning - was great fun.
Wooden/open ended toys - would love to have a gorgeous collection of wooden toys, but instead I have a dog who is an arsehole, the two things are incompatible!
Certain brands of children’s clothes (Scandinavia/ethical brands) - almost all second hand and very much a capsule wardrobe. they last well and look cute.
Prams (having so many and getting new ones all the time) - wish I'd just bought an out n about nipper when pregnant and had it from the start, but I really didn't have a clue. The umbrella fold stroller given to us my DM ndn has been invaluable too (and lent out to other parents going on holiday).
Car seat safety (rear facing, some people I know seem to know every seat on the market!) - this is something every parent should be obsessed with and knowledgeable about, I'm an experienced paramedic and I've struggled to find the right information and buy the right seat. We have a joie every stage which rear faces until 4, but I now want to get one that rear faces to 25kg. They really do save lives, and the law needs changing to make them compulsory for much longer.