Would Joe Wilson have heckled a white Democratic president? That seems to be the question of the day. In short, I think the answer is probably yes, but I don't know for sure.
The last time the Democrats had the chance to change the country for the better was in 1993, when Bill Clinton was presient and Ds controlled Congress. At that time, the Gingrich/Norquist far right Republican revolution was in its infancy. The party was still run by Bob Dole, Bob Michel and other moderates whom Gingrich and his crew criticized for being too wishy washy and compromising.
Media figures such as Bill Kristol and others managed to convince Congressional Republicans that ANY sort of health reform would be a political boon to the Democrats and their political ideas, and therefore the only prudent strategy was to ensure that President Clinton failed to pass ANY reform bill.
http://theplumline.whorunsgov.com/bill-kristols-1993-memo-calling-for-gop-to-block-health-care-reform/. The Republicans took their advice and opposed all health reform.
After Clinton's failure to pass health care, the Republicans laughed all the way to the electoral bank in 1994, especially the Gingrich radicals. These radicals grabbed control not only of Congress but of the entire party with the help of their army of fundies. They ran on very conservative ideas such as the Contract for America.
As the radicals gained power, they got two powerful allies: In 1996, Fox News was born to provide "fair and balanced" coverage as opposed to the "liberal bias of most media." Fox broadcasts the radical talking points to the Republican base and willing moderates and non-political people. In 1999, the Club for Growth was formed. This advocacy group seeks to root out "RINOs" within the Republican party by funding primary challengers. They backed a challenge to Arlen Specter in 2004 through far-right congressman Pat Toomey; they funded Cranston, RI Mayor Steven Laffey against Lincoln Chafee in 2006.
Due to these and other forces, the number of Republicans in Congress willing to be reasonable with Democrats dwindled. Either they lost reelection or were muffled through fear of a primary challenge. Because of Fox and others, the Republican base got more and more radicalized and unified.
Finally, in 2000 George Bush muscles his way into the Presidency and starts acting like a dictator, cynically exploiting the landscape whenever possible, such as the tragedy of 9/11. Almost every boundary of decency and decorum fell, as political victory became paramount. This radical attitude finally came back to bite the Rs in 2006 and 2008. Smarting, and trying to find a way to come back, with a D president and a D congress trying to pass health reform, the Republicans remember 1994.
The tea parties, the town halls, the heckling of the president by Joe Wilson, all part of the Gingrich/Bush era attitude that no boundary is sacred. The Republians, I think, have 1994 in the back of their minds. All they have to do is kill health care and they will rocket back into power-do ANYTHING to kill it.
Joe Wilson is a product of this changing demographic and attitude of the Republican party. He is part of the single-minded focus on destroying the president and springing back into power, just like in 1994.