If unionists did taoisigh, they couldn't come up with a better one than Micheal Martin.
They see him as genuinely having zero interest in a border poll in any time-frame.
Since he took office the DUP and UUP have heaped praise on his shoulders - which makes republicans even more wary of him. As the new Taoiseach arrives on his first official visit to Belfast today it feels for unionists as if they now have a real friend from Dublin calling by.
Their only complaint is that Simon Coveney remains as Foreign Affairs Minister, although they believe - rightly or wrongly - that he's been "neutered".
Notwithstanding the SDLP's "partnership" with Fianna Fail, northern nationalists have as yet failed to muster anything resembling the same level of excitement for Martin as they did for Varadkar.
The Fine Gael leader's persistent challenges to London over Brexit almost made the Blueshirts popular in republican areas here.
Young nationalists in particular were proud of the liberal, progressive politics that he so publicly espoused. Marching in Belfast's Pride parade, calling in for a pint in the city's best known gay bar - they could hold up Leo in contrast to "DUP dinosaurs".
For unionists, though, it's about the border first and foremost.
Their faith in Martin was proven justified when he quickly made it clear on becoming Taoiseach that a border poll wasn't on his horizon even in the longer term.
Questioned on the BBC's Sunday Politics last weekend on whether he'd be asking Boris Johnson about the circumstances in which a referendum could be called, he insisted that he would not.
Asked if he might be doing so in future, he replied: "I don't believe timelines are helpful at all."
Those words were massively reassuring to DUP and UUP ears.
By contrast, the Varadkar-Coveney partnership often sent a shiver down unionist spines.
In reality, neither man was driven by any deep-seated ideological goal. They were responding to the economic threat that they saw Brexit posing to the Republic.
But what nationalists welcomed as energy and assertiveness, unionists rejected as intrusion and aggression.
Both Varadkar and Coveney publicly said they'd like to see a united Ireland in their lifetime.
Unionists regularly denounced as unhelpful their "megaphone diplomacy" on Brexit. It's a view that the new Taoiseach himself shares. Last year he said that he would have resisted the temptation to "lord it over the British" and would have adopted a "less triumphalist" approach.
Coveney's intense involvement in affairs here won him as many nationalist admirers as it did unionist opponents. While he retains the foreign affairs portfolio, Stormont sources claim many of his powers have been effectively "stripped from him".
The Taoiseach's new 'shared island' unit is generally seen as solely a talking shop. And for that unionist hearts rejoice as avidly as republican ones fall.