WHY no 410redirects on shopify????

[LCG]

I am going through my long list of 404 errors on google ands have realized Google wants me to do a 410 redirect for the pages of items I no longer carry. I am ok with this, except for Shopify wont allow it. Now I am faced with an impossible situation of asking Google to temporarily stop crawling pages for six months at a time, and doing improper redirects to other pages that really dont have much to do the pages I have deleted. I would think a company like Shopify would understand that products come and go and we need a way to maintain our rankings while also maintaining an accurate website. 

Does anyone why shopify would make my SEO so damn difficult? Why cant we just do it the right way?