This is a bit over the top. Reagan's popularity wasn't restricted to conservatives. Also, Reagan was very popular outside the US in the non-Communist world and was seen as a strong leader.
In 1978?
No, not prior to the election, nor in the first few years after. He was considered a joke, most of the world media followed the line of the US MSM. Remember back then after Watergate, the MSM had considerable clout and influence.
I travel with work, and have lived for extended periods in several countries, and even now, most around the world remember him mainly as a war-monger or for Contra-Gate. I kid you not. It gets me mad as hell.
The Kennedy's are of course lionized. As is Clinton. Believe me, America is the last Conservative bastion in the English speaking world.