The phrase "are mostly excluded from" is correct and usable in written English.
It can be used when discussing groups, individuals, or items that are generally not included in a particular category or situation.
Example: "Certain demographics are mostly excluded from the survey, leading to skewed results."
Alternatives: "are largely omitted from" or "are primarily left out of".
Apart from areas such as education and healthcare, women are mostly excluded from the workplace.
Although such areas are mostly excluded from the analysis of this study, some errors could have remained particularly around the edge of the data extent and at the bottom of scanner where point data cannot be obtained.
These groups are mostly excluded from web-based interventions.
Under Chinese insurance system, migrants are mostly excluded from the urban employee's basic insurance scheme.
Basidiomycetes are also mostly saprophytes [1], yet are mostly excluded from aquatic environments, leading to lower abundances [3].
Because satellite DNA repeat units are short and vary little if at all in sequence, they are mostly excluded from genome assemblies [ 2].
Nevertheless, the Collinses have been mostly excluded from the cocktail revival, left to wither on the oldies circuit with their pal Harvey Wallbanger.
The kinked isophthalate units in the copolymer are found to be mostly excluded from the lamellar crystals during the crystallization process, leading to an increase of the amorphous layer thickness.
The mutual-radiation resistances resulting from cross-modal coupling have been mostly excluded from sound power calculations on the belief or premise that either for some reasons they have an insignificant impact on the power radiation or consideration of them can be an enormous computational burden.
Women were mostly excluded from cheerleading until the 1930s.
She says young girls have been mostly excluded from the superhero action.
