Ireland will be hurt seriously by no deal.
https://www.irishtimes.com/business/agribusiness-and-food/brexit-food-and-drink-exports-still-heavily-reliant-on-uk-1.3350661


As will Germany the single biggest EU exporter to the UK

Ireland:
"The proportion of food and live animal exports to the UK increased to 46% in 2015 from 38% in 2000, while exports in manufactured goods rose to 55% of the sectors' total exports from 43% over the same time.

Irish agri-food would face some of the highest tariffs if the EU-registered World Trade Organisation tariff schedule was applied to EU-UK trade should Britain leave under a so-called "Hard Brexit" in 2019