1. Miners have years to plan for the halving, which means they are given the chance to readjust themselves to see if they can continue the mining task. Certainly, profits might not be guaranteed, especially when working as a solo miner.
Miners have to build up their strategy because mining is like an investment but requires very long time to get break-even. If they take risk too much, don't have good strategy, they can have bankruptcy. We usually think Bitcoin miners easily get profit but it is not like this. It is a risky investment for newbies and with each halving, we will have many new miners join this mining industry.
New miners are most vulnerable with market shocks, corrections because their budgets likely are not too deep and they over take leverages, risks. Experienced miners are like senior investors, they know what to do in bull and bear market and how they can reserver their block rewards for halving and bull run.