Translate the following English sentence to French:
"It is therefore unacceptable that the readmission agreements can allow a third country national to be returned to his or her country when we know that this country more often than not does not guarantee respect for human rights and democratic freedoms."
Or, il est inadmissible que des accords de réadmission puissent permettre de renvoyer un ressortissant d'un pays tiers dans son pays, sachant qu'il n'y existe trop souvent aucune garantie de respect des droits humains et des libertés démocratiques.