Wiseacre -
As you can see from the graphic, the extreme left and extreme right are closer to each other than they are to the centre.
Bein in Nazi Germany no doubt felt more like being in Communist Russia than it did like the US or EU today.
But this does not mean they are the same - there are very key differences, as explained in the OP.
Conservatism champions small government, but the further to the right you go, the larger the government will be. All very powerful right wing governments - Franco, Antonescu, Hitler, Pinochet, Cristiani - have had massive bureacracies.
The right is for individual rights, less taxes, less regulations, and smaller gov't - all of which is the polar opposite of fascism. Fascism is all about total gov't control, the exact antithapy of the right; instead, it is the goal of the left. Can't see how you can possibly say the far right wants more gov't than the center right does, that makes no sense. Actually, it's the other way around, have you not heard of the Tea Party groups, who are demanding smaller and less intrusive gov't? These guys are not the center right, not even close.
Any kind of huge gov't with a large bureaucracy is by definiton a left wing gov't, with total or near total control of the citizenry. The far right wants the exact opposite, NO gov't control or very little, with an emphasis on individual liberties and rights. Such as property rights, do you think any of those regimes you mentioned allowed much in the way of property rights? NO - in each case the gov't made all the decisions about who gets what. NOBODY on the right, no matter how extreme you get, wants that.
By your definition, when is the last time we had a right wing president? It surely wasnt either Bush or Reagan, since all three expanded the government.
I would counter than both Bushes and Reagan had to deal with the democrats as well as moderates in their own party who were loathe to give up earmarks and other goodies to their constituents and backers. Probably the last repub president that actually didn't expand the size of gov't might have been Coolidge. None of which alters the fact the ideologically speaking the right wing is for smaller gov't than the left is.
Let me ask you 2 questions:
1. How much would Reagan have cut the size of gov't if the democrats had not lied about making spending cuts after they got their tax increases?
2. How much bigger would the size of gov't had been under Clinton if he had not had to work with Gingrich and the repub Congress? Do you think we would have had the budget surplus if he been able to spend more? I don't think so.