If the republicans thought that the Green Party was going to be an attractive option for their voters in 2000 they certainly adopted an odd strategy
https://web.archive.org/web/20050912163938/http://www.washingtonpost.com/wp-srv/aponline/20001027/aponline115918_000.htm
Hoping to boost Ralph Nader in states where he is threatening to hurt Al Gore, a Republican group is launching TV ads featuring Nader attacking the vice president.
The ads by the Republican Leadership Council will begin airing Monday in Wisconsin, Oregon and Washington, all states that are part of Gore's base and where Nader is polling well. The group plans to spend more than $100,000 at first and hopes to raise more over the weekend.
It’s not some crazy conspiracy either, the Republican Leadership Council explained the ad buys in this way
The Republican Leadership Council, a centrist GOP group, has been helpful to Bush before, airing ads during the Republican primaries critical of challenger Steve Forbes. Several members of the RLC board were early Bush supporters.
The RLC ads will run initially in four markets: Eugene and Portland, Ore.; Madison, Wis., and Seattle.
Mark Miller, the group's executive director, said the ads are partly a response to commercials being run by the National Abortion and Reproductive Rights Action League, which argue that a vote for Nader is a vote for Bush.
"Ralph Nader doesn't believe that," Miller said. "Ralph Nader and his supporters are not backing down because they believe Al Gore has had numerous broken promises."
Miller added that some of Nader's supporters have bragged that Nader has never had help from "soft money," the unrestricted donations used by parties and interest groups.
"We'll put an end to that," Miller said.
You might notice how the answer doesn’t really make any sense, a pro Bush Republican PAC wanted to run ads in Gore strongholds promoting Nader with the argument that Gore broke numerous promises. Why? Because groups said that a vote for Nader is a vote for Bush. It sounds like they are trying to counter this but then their actions fully support that idea.
Maybe some republicans could be persuaded to join the greens, but I pay attention to how people spend their money because talk is cheap. If republicans spend money to promote Nader in states they want to win, they obviously think they’ll poach more gore voters than Bush voters, it just doesn’t make sense otherwise.
I actually agree that the Green Party is staking out policy positions that both parties have abandoned, but I still think the abandoned policies they’ve picked up to champion are still more attractive to left leaning people than right leaning people.
Unless the WSJ has been taken over by liberals, owned by famous liberal Rupert Murdoch, they seem to be following a similar path now https://www.wsj.com/politics/elections/jill-stein-republican-support-harris-voters-5a194ebf
So while I imagine some of these policy positions might be attractive to some disaffected republicans, republicans seem to think it will be useful to promote them. The only way that makes any kind of sense is if they think it will attract more potential Democratic Party voters than republican.