Weicker and his Greenwich neighbors (Red Ned Lamont, et al.) were just enraged at having to actually pay taxes personally, from their own money, no less (As Leona Helmsley said on the subject of federal income taxes: "Taxes? I don't pay taxes! Only the little people pay taxes").
Connecticut's mega investor class handsomely rewarded the political whores who enacted the new tax scheme and abandoned their traditional alliance with people who worked with their hands for a living, moderate income professionals and small business folks. It was only right (to hear them) that the kids who flipped burgers at Mickey D's pay taxes to subsidize the lavish lifestyles of Red Ned Lamont's red relatives.
The investment taxes were lowered to 4 1/2% which also made the investment class a very big winner compared to 14%. Connecticut is the only state to have enough sense to abolish the unnecessary layer of government that is county government. No county government means no county taxes (no shifting tax burdens from the welfare denizens of the big cities onto the productive suburbs to subsidize urban corruption and socialist schemes through county subsidies). That means you need only see to it that your suburban state legislators vote NO on state tax burden shifting schemes to cut the allowances of urban bosses. Connecticut also gives NO taxing authority to school boards but makes them beg for money out of general municipal revenues and some state subsidies and how the gummint skewel madrassas of the radical left hate that lack of taxing authority.
Commissar Weicker's veto could not be overridden because he paid off legislators in furiously anti-income tax blue collar districts by giving them choice jobs in the permanent bureaucracy.
Also, the New Haven Register had led the successful repeal of the first Connecticut general income tax in 1971, fighting the Hartford Courant on the subject. By 1991, the Register had been sold by the heirs of the Jackson family to the old leftist and lifestyle leftist Ingersoll family which supported the state income tax for the usual special investor interests.
Note that Weicker endorsed Red Ned and that exit polls say that the median income of Red Ned's primary voters was over $100,000 while Lieberman's best areas were the mill towns and modest neighborhoods of Democrat voters in places like Waterbury and the Naugatuck River industrial valley
Finally, the sensible solution would have been repeal and putting the state government on a severe diet by cutting its allowance. Cut enough and the interest, capital gains and dividend taxes could easily have been repealed.
Oh, to finally dig up the video I took that day of King Lowell Wieker walking into the crowd, and NOT ONE person jostled him or spit at him like the media said....