2. There are sufficient people who are trading Bitcoin NFTs. We can safely say they exist (even if you deem Ordinals Theory a "scam") in their current shape or form, which is up to you to decide if it's worth anything. You can't just hate a concept into non-existence

There is no such thing as a Bitcoin NFT because there is no such thing in the protocol. Their existence has nothing to do with whether people trade them or not.
For example my previous post here "msg64579198" also can be tracked since it has a number attached to it and you can call it a NFT and pay me a million dollars for it. That doesn't make it into a NFT though. It also doesn't prevent me from deleting that post because it is centralized and I control its existence.
Why? Because bitcointalk is not a token creation platform and my post was not a smart contract that is being executed in a decentralized platform.
The same with what you refer to as "Bitcoin NFTs". They are literally treated as arbitrary data by the Bitcoin protocol. There is no script. There is no smart contract. There is no verification. Just arbitrary data.
If you ask someone who doesn't know anything about Ordinals Theory to track sats (for whatever reason), they will come up with the same rules.
And none of it is part of the Bitcoin protocol hence they are all arbitrary in Bitcoin world. Worst of all is that none of those rules were created nor can they change in a decentralized way. It is all centralized.
4. How will Bitcoin scale if it can't handle a few tens of thousands trading their "fake tokens"? The same high fees would be produced by people using Bitcoin on mass for everyday transactions. What then? We'll shout at people that they're just transferring low amounts of Bitcoin and thus should burden their network with their insignificant transactions? All Bitcoin transactions are the same: be it a "fake token" buy or a Bitcoin transfer, or whatever. For people who can't afford to transfer their btc because of high fees, we have lightning.
First of all lets be clear about what is happening here. People found an exploit in the protocol and have been abusing it to inject arbitrary data into the chain. To put simply people are using the decentralized ledger of a payment system as a cloud storage which is
the definition of abuse.
Secondly your arguments regarding bitcoin's scaling issues is not a justification for this abuse. One of Bitcoin's shortcomings is its scaling issues, but that doesn't mean people should abuse the protocol and turn it into a cloud storage.
5. Calling someone an idiot because of their "taste" in choosing what to collect is straight-up wrong.
I already explained why they are idiots at the beginning of this post. That's because they think they are trading a token while what they are trading is not a token at all.
Bitcoin is not the ethereum (or other similar) platform(s) that you can create a token on.