The reason why the 2MB upgrade was not done was to fix this problem in a future proof way - the layer 2 solution.
10 years from now a billion people want to open a new LN channel once per month, or perhaps once every 2 or 3 month.
Bitcoin need both off-chain and on-chain scaling, or it can never become the dominant payment system on this planet.
1-MB-BTC with LN plus BCH is not a replacement for this.