Translate the following English sentence to French:
"Some accuse the Commission' s proposal, and also the report, as being excessive and far too costly to implement and say that the calculations that have been made are utopian."
Certains accusent la proposition de la Commission, et également les idées contenues dans le rapport, d'être excessives et beaucoup trop coûteuses, et affirment que les estimations en question sont utopiques.