Well, no... because the potato famine as a disaster was pretty much entirely the product of Liberal ideology...
Much more a product of Tory ideology than of Liberal ideology.
Not really; though the entire British establishment of the period was to blame. Al, however, was more accurate the first time.
And to answer the title question, no, but why do people assume that SYRIZA would act "reasonably" when in power and that this is in fact a good idea? If you haven't been paying attention the last four years (at least) have been terrible for reasonableness.