The beautiful thing about truth is that it is objective. No matter how many disagree with it, it still remains the truth.
First of all: Extraordinary Minister of Holy Communion. Any other wording is erroneous, and in particular “the name “minister of the Eucharist” belongs properly to the Priest alone.” (see Redemptionis Sacramentum).
Second: members of the common priesthood cannot bless. Only those who have received the Sacrament of Holy Orders and entered the ministerial priesthood can act in persona Christi and bless (that includes Deacons, Priests, and Bishops). It would be pointless for a lay faithful to bless someone just as it would be pointless for him to try to absolve someone or to try to consecrate the host.
You may want to re-read the Catechism, specifically the section regarding the Sacrament of Holy Orders. It’s not a matter of being “locked” into a position, but a matter of acknowledging that Holy Church is our Teacher for a reason, and if we deviate from what She teaches and start doing things according to our way, then we will collect the poisonous fruits of disobedience and rebelliousness.
(Here) we find the boundaries in which EMHC are to work:
Extraordinary ministers of Holy Communion may distribute Holy Communion at eucharistic celebrations only when there are no ordained ministers present or when those ordained ministers present at a liturgical celebration are truly unable to distribute Holy Communion.(99) They may also exercise this function at eucharistic celebrations where there are particularly large numbers of the faithful and which would be excessively prolonged because of an insufficient number of ordained ministers to distribute Holy Communion.
This function is supplementary and extraordinary (101) and must be exercised in accordance with the norm of law.
To avoid creating confusion, certain practices are to be avoided and eliminated where such have emerged in particular Churches:
- the habitual use of extraordinary ministers of Holy Communion at Mass thus arbitrarily extending the concept of “a great number of the faithful”.
Furthermore, the Congregation for Divine Worship has stated in a letter that
Lay people, within the context of Holy Mass, are unable to confer blessings. These blessings, rather, are the competence of the priest (cf. Ecclesia de Mysterio, Notitiae 34 (15 Aug. 1997), art. 6, § 2; Canon 1169, § 2; and Roman Ritual De Benedictionibus (1985), n. 18).
EMHC are lay faithful. But even for a priest or deacon, the letter specifies:
Furthermore, the laying on of a hand or hands — which has its own sacramental significance, inappropriate here — by those distributing Holy Communion, in substitution for its reception, is to be explicitly discouraged.