One cannot tell what "the act of Eucharist" is but you are setting it and elevating it above "host" which is to say Christ the Victim on the Cross ("Hostiam puram, Hostiam sanctam, Hostiam immaculatam" in the Eucharistic Prayer) so you are therefore claiming that something other than Christ's sacrifice makes sacred what we do at Holy Mass.  Which is not a Christian (Catholic or not) position in the least.