Secularists remain a minority in Egypt, and there is no way for them to win in a free and open election in the long run. So the only way to maintain a secular Egypt is through force, for better or for worse.
Secularism is only one solution. A far more sustainable solution is a cultural rejection of radicalism.
That’s what happened. Millions rejected the Muslim Brotherhood.
That loss of face will be generational. Generations will remember the gasoline lines and hyper-inflated food prices under Morsi.