Bitcoin miners don't compete for the same energy as residential and most industrial uses. Mining isn't profitable unless energy is a fraction of the price that typical consumers pay. The effect is that Bitcoin miners act as energy buyers of last resort. In other words, they buy wasted energy.

Having a buyer of last resort is good for energy grids (or any product), not bad for them. It incentivizes grid build out. Instead of worrying about whether a particular energy development will have enough demand, they can work out a deal with Bitcoin miners to sell wasted energy to them.

Industrial users of power frequently work out power agreements that will pay them in the event that they are required to shut down. This is completely normal. The difference is that Bitcoin miners are EVEN MORE flexible in that they can shut down at a moment's notice, unlike manufacturing or smelting. Again, this is good for grids, not bad.