Not to tell you how to live your life - and do take note that I don't know you or your dad personally - but this sounds like a piece of generational trauma that you have the opportunity to get rid of. Best of luck!
And from looking at the Wikipedia for Smyths it seems that they bought the Toys "R" Us stores in Germany, Austria, and Switzerland. Not really the same thing as here (Portugal, btw), I think, since they kept the branding, but IDK, I'm not an IP lawyer...
I see the delusion takes precedence. I respect it.