Every centralized exchange is required to do AML/KYC on their platform if they want to do it to prevent money laundering and the SEC penalty. That means there is no legit exchange that will run an IEO on their platform without asking the KYC to their costumer. If you do not want to send your KYC, do not participate in IEO but find ICO.
there are many projects do not require you to send your documents to participate in their sales.
I think the OPs concern is the fact that cryptocurrency is fast deviating from secure, centralised, privacy space to a more open and tolerant space which is in bid to accommodate the rules and regulations of financial operations in the centralized world. If he's only interested in IEOs, them I am afraid he must pass through KYC unless there's a Dex offering IEO sales. But if he can't, then the only option is to buy from exchanges after IEO sales. That's the most obtainable for OP