Individual entitlements are a majority of federal spending. In comparison, government incentives for coal are almost non-existent. You seem to be off by at least 10,000%.
The funding model is completely different. Entitlement programs are funded by employers as a cost of doing business and taxpayers, and they’ve been providing intergovernmental loans for years to keep loan costs down. Meanwhile shoving billions to cover miner health programs and re-shore busted pension funds are paid by the taxpayer, who maybe gets lower coal energy costs, but probably not. That’s before we get into the uncalculated, externalized costs of coal on the environment.
Government incentives for coal are huge. It’s just that most of them take the form of allowing them to dump toxic waste without any consequences, so it doesn’t show up in the official budget.