Possibly a little history just in case you were born after 1980.
NOT ONE president - including Reagen has been able to get Congress to limit spending
Perhaps you live in a dream land, as for me, there is no way forward voting for an R, unless you wish to be disappointed once again - no Stockholm syndrome for this voter
You worry about limiting spending. As the nation grows, the need for spending grows.
When there is a real decline in population the need for growth will diminish. Such a real decline is not on the current horizon
Politics is the art of the possible. Politics in not the art of “I want”
The problem is entitlements. Generally, given the near 50/50 split there is no majority with the raw political power to make reductions in the entitlements.