Real history says your appeasement canard about Democrats is inaccurate.
Detente was a Republican Nixon project. Washington Sen. Henry Jackson, a famously hardline anti-Soviet politician who insisted on Soviet Jewish emigration as the price for a grain deal in 1972, was a Democrat.
The president who faced down the Soviets in Cuba and the Berlin Wall: Democrat JFK.
The president who faced down the Stalin-sponsored invasion of South Korea: Democrat Harry Truman. The Berlin airlift: under Truman in 1948.
Containment policy: formulated under Truman.
The president who didn't face down the Soviets' invasion of Hungary in 1956 and repression of rebellion in East Berlin in 1953: Republican Eisenhower.