I'll admit I only scan read your wall of text but...
I agree that it is difficult to live on a Bitcoin standard without using fiat rails like bitrefill but I didn't say that. I said circular economy where you can. I am in the UK. So, if you are lucky enough to have a shop that accepts Bitcoin and sells something you need to buy, go there. Once you have spent those sats, replace them with the £/$/€ you would have spent. No paradox. If there is no shop, which is often the case, look for like minded vendors. BTC maps can help here. nostr:nprofile1qqswc7d4dz775c72vzgltwztp33ecy9qjx0pwhaqnfx7x920s2gx7fgppemhxue69uhkummn9ekx7mp0qy2hwumn8ghj7un9d3shjtnyv9kh2uewd9hj7qg6waehxw309aek2mnyd96zumn0wdnxcctjv5hxxmmd9ululvvj runs an online market place. nostr:nprofile1qqsdua0tr4axvfuq02xl7ranxl8u7xy706d032mz98mg3anywyxrq9qppemhxue69uhkummn9ekx7mp0qythwumn8ghj7ct5d3shxtnwdaehgu3wd3skuep0qy2hwumn8ghj7un9d3shjtnyv9kh2uewd9hj7zshfgy sends preserves and honey and stuff. nostr:nprofile1qqsvgj4kam4n5rjatjxc46p2ltgw89aal0yjqrta3lp7u99xn60hgrqpzamhxue69uhhyetvv9ujuurjd9kkzmpwdejhgtcpzamhxue69uhky6t5vdhkjmn9wgh8xmmrd9skctcprpmhxue69uhhyetvv9ujuen0w4h8gctfdchxvmf0c4zgsh has a network of hairdressers.
A little hard for you?