If you want to go back to since before Bloom took over I'd agree that they are "contenders year after year". However...
Sox finishes since Bloom too over as COO (or whatever that title is now)
2018 - Won their division with 108 wins! This team had Betts, Bogaerts, and Devers.
2019 - 3rd. Bloom took over after the end of the season, Betts got traded before 2020 season
2020 - Last
2021 - 2nd
2022 - Last, Lost Bogaerts to FA before the 2023 season
2023 - Unknown, but if losing Betts hurt the team then you also have to think that losing Bogarts will hurt too.
2024 - Unknown, but you can bet that if Devers goes to FA after 2023 this ain't gonna be pretty.
This team was a contender pre-Bloom but that hasn't really since Bloom took over. IMO one would have to be very naive to think the Sox can be competitive if they remain willing to let the best player on their team get away.