 Perhaps the problem occurs because the supporters of democratic capitalism advertise themselves as individualists when, “ under the mask ” they are profoundly communitarian.
<fluency>  Perhaps the problem occurs because the supporters of democratic capitalism advertise themselves as individualists when, “ under the mask ” they are profoundly communitarian.
 Perhaps the problem occurs because the supporters of democratic capitalism advertise themselves as individualists when, " under the mask ” they are profoundly communitarian.