I completely agree. If mixers like ChipMixer start getting more popular and even possibly get fully integrated into wallets such as was attempted with the Electrum wallet it would completely change the meaning of using one. Rather than them being seen by the average person as trying to hide something or as possibly money laundering, it could completely remove the negative stigma held against it.
Future of bitcoin mixing is mixing embedded in the wallet. It is hard to imagine browser without https support. It will be hard to imagine bitcoin wallet without mixing.
Any interesting projects that are currently working on this? Adding a mixing layer on top of Bitcoin doesn't sound like a trivial task.