Your not alone, I wont use segwit transactions for high valued transactions, I might consider segwit transactions for microtransactions only though (where I wont mind if majority of miners steal the spend by anyone (segwit) Bitcoins).
-10% is not considerable number. We had about 5000 full nodes 2 months ago. Thanks to Bitcoin Classic competetion, we have almost 7000 nodes today. With 2MB (or 4MB) and -10% we can be at nice 6000 nodes with advantage of having buffer for more transactions should the Bitcoin adoption continue. Win-win situation. Bitcoin Classic are as worthy as Bitcoin Core nodes, these are mostly hosted on amazon cloud because of the DDoS from radical criminals, but there is no evidence these are not legitimate full nodes (or pruned nodes). I could spread the FUD as well saying Bitcoin Core nodes are worthless, but without hard evidence it would be just FUD as the link above.
2) second layer (LN) does not even exist currently, so pointless to argue whether LN become decentralized or can be used only in centralized maner as seems today
If 2MB (or 4MB) is fine for decentralization we should make it available as soon as possible, and then reconsider if higher sizes are safe for keeping dentralization as well. Do not the fear of people asking for 6 or 8 MB later kill Bitcoin progress.
The LN centralization problem is the way people have to find the LN HUBs, it is well known problem and decentralized solution is not known yet, so not misinformation at all.