I don't think so for this reason; socialism requires the destruction of the market system - not a co-existence - in order to lay the political and social goals on the ashes.
Equating subsidy with socialism:
-- is the intent of government to destroy or nationalize the industry by subsidy? Or is government intervening in the economy, thinking it necessary to prevent injury to the industry, in effect protecting it?
-- we wouldn't say zebras and tigers are the same animal, or approximate, because they both have stripes. Market and socialist economies share some sentiments and goals, but entirely different mechanisms to accomplish it, and different philosophy regarding liberty and outcome.
I think your last sentence is apt. There's a sound argument that we're in a quasi-fascist corporatist phase, where government exerts influence over corporations with tax and regulatory favoritism to enact social policy. The judiciary has also shown a willingness to aid legislators. IMO, corporatism is slow-walking toward socialism.
I'd heard a Latino woman interviewed in which she remarked that Central and South Americans understand socialism having lived it, but that Mexicans do not and somewhat explains why 1/3rd of Hispanics/Latinos vote Republican, and 2/3rds vote Democrat. It may well take another Mao and Stalin episode to remind people.