Should the prequels and TFA be considered canon?
Yes.
And CW… and TCW… and Rebels… and Rogue One… and Episodes VIII-IX-X-XI-XII-…-XXX (starring Vin Diesel I hope)… but you’re not obliged to watch everything, especially what you don’t like.
Should the prequels and TFA be considered canon?
Yes.
And CW… and TCW… and Rebels… and Rogue One… and Episodes VIII-IX-X-XI-XII-…-XXX (starring Vin Diesel I hope)… but you’re not obliged to watch everything, especially what you don’t like.